Ex 24 chart

Question 1

All of the pathogens produce acid and gas in the fermentation of glucose, lactose and sucrose except for which one?

Answer 1

E. Coli only produces acid in the sucrose test

Question 2

What is the result of the indole test for E. Coli and Enterobacter?

Answer 2

positive - a red ring appears

Question 3

What is the result of the indole test for Proteus, Citrobacter and pseudomonas

Answer 3

Negative - no red ring appears

Question 4

What is the shape and gram stain for every pathogen: E.Coli, Enterobacter, Proteus, Citrobacter and Pseudomonas

Answer 4

Gram negative rods

Question 5

What is the result for the mackonkey agar plate for e. coli and enterobacter?

Answer 5

positive (bright pink)

Question 6

what is the result for the macconkey agar plate for proteus, citrobacter and psuedomnonas?

Answer 6

negative (no color pink)

Question 7

what is the oxidase test for e coli and enterobacter?

Answer 7

positive (blue test)

Question 8

what is the oxidase test for proteus, citrobacter and pseudomonas?

Answer 8

negative (no color